That shows what few magnitude values different makes. Remembering it is a logarithmic scale, it's a lot more than 5 times fainter. Venus is -4.3; Mars is 1.2. Venus is 24 arc-seconds in size; Mars is 5. Not really surprising it can't be seen in daylight.
Makes me wonder what the day-time limiting magnitude / apparent size factor is...
Friday, June 05, 2009
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